Thanks for the response and DIY Chriztofor
My car is fine now :-)
I decided to measure how much fluid I had in my oil pan (old oem fluid). I took out a little over 6.5 liters. So I drove my car until the engine oil was relatively warm. Put it on jack stands and raised the back of the car a little more. Checked the pan with a leveler. I ended up getting over 6.5 liters in total back into the tranny. I'm really happy I didn't have to take my car to the dealer or a tranny shop.
I drove it to warm it because my ATF pan wasnt warm when I started it for 10 mins last time.
It was my mistake for not measuring out how much fluid I took out. Hope no one makes the same mistake.
+1 for castrol multi-vehicle ATF